:root {
  --primary-color: #1a5f7a;
  --primary-dark: #0d3b4c;
  --primary-light: #2c7a9b;
  --accent-color: #ff6b35;
  --accent-hover: #e55a2b;
  --text-color: #333333;
  --text-light: #555555;
  --text-muted: #888888;
  --bg-white: #ffffff;
  --bg-light: #f8f9fa;
  --bg-dark: #1a1a1a;
  --border-color: #e0e0e0;
  --shadow-sm: 0 2px 4px rgba(0, 0, 0, 0.08);
  --shadow-md: 0 4px 12px rgba(0, 0, 0, 0.12);
  --shadow-lg: 0 8px 24px rgba(0, 0, 0, 0.16);
  --transition: all 0.3s ease;
  --container-width: 1200px;
  --header-height: 80px;
  --nav-height: 60px;
}

* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

html {
  font-size: 16px;
  scroll-behavior: smooth;
}

body {
  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', 'PingFang SC', 'Hiragino Sans GB', 'Microsoft YaHei', sans-serif;
  line-height: 1.6;
  color: var(--text-color);
  background-color: var(--bg-white);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

.container {
  max-width: var(--container-width);
  margin: 0 auto;
  padding: 0 20px;
  width: 100%;
}

/* 新闻页面宽容器 */
.container-wide {
  max-width: 1400px;
  margin: 0 auto;
  padding: 0 20px;
  width: 100%;
}

.visually-hidden {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}

.skip-link {
  position: absolute;
  top: -40px;
  left: 0;
  background: var(--primary-color);
  color: white;
  padding: 8px 16px;
  z-index: 10000;
  transition: top 0.3s;
}

.skip-link:focus {
  top: 0;
}

.site-header {
  background: var(--bg-white);
  box-shadow: var(--shadow-sm);
  position: sticky;
  top: 0;
  z-index: 1000;
  height: var(--header-height);
}

.header-content {
  display: flex;
  justify-content: space-between;
  align-items: center;
  height: 100%;
}

.logo {
  display: flex;
  align-items: center;
  text-decoration: none;
  gap: 12px;
}

.logo img {
  height: 50px;
  width: auto;
}

.logo-info {
  display: flex;
  flex-direction: column;
}

.site-name {
  font-size: 1.25rem;
  font-weight: 600;
  color: var(--primary-color);
  line-height: 1.2;
}

.site-slogan {
  font-size: 0.875rem;
  color: var(--text-muted);
  line-height: 1.2;
}

.header-contact {
  text-align: right;
}

.contact-label {
  font-size: 0.75rem;
  color: var(--text-muted);
  margin-bottom: 4px;
}

.contact-phone {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 1.25rem;
  font-weight: 600;
  color: var(--accent-color);
  text-decoration: none;
  transition: var(--transition);
}

.contact-phone:hover {
  color: var(--accent-hover);
}

/* 主导航栏 - 独立区域 */
.main-nav {
  background: var(--primary-dark);
  height: var(--nav-height);
}

.nav-wrapper {
  display: flex;
  justify-content: space-between;
  align-items: center;
  height: 100%;
}

.mobile-menu-toggle {
  display: none;
  background: none;
  border: none;
  color: white;
  cursor: pointer;
  padding: 8px;
}

.nav-menu {
  display: flex;
  list-style: none;
  gap: 0;
  margin: 0;
}

.nav-item {
  position: relative;
}

.nav-link {
  display: flex;
  align-items: center;
  padding: 0 20px;
  height: var(--nav-height);
  color: white;
  text-decoration: none;
  font-size: 0.95rem;
  transition: var(--transition);
  position: relative;
}

.nav-link:hover,
.nav-link.active {
  background: var(--primary-color);
}

.nav-link::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 50%;
  transform: translateX(-50%);
  width: 0;
  height: 3px;
  background: var(--accent-color);
  transition: width 0.3s;
}

.nav-link:hover::after {
  width: 80%;
}

.dropdown-arrow {
  font-size: 0.7rem;
  margin-left: 4px;
  transition: transform 0.3s;
}

.nav-item:hover .dropdown-arrow {
  transform: rotate(180deg);
}

.dropdown-menu {
  position: absolute;
  top: 100%;
  left: 0;
  min-width: 200px;
  background: white;
  box-shadow: var(--shadow-md);
  opacity: 0;
  visibility: hidden;
  transform: translateY(10px);
  transition: var(--transition);
  list-style: none;
  padding: 8px 0;
  z-index: 100;
}

.nav-item:hover .dropdown-menu {
  opacity: 1;
  visibility: visible;
  transform: translateY(0);
}

.dropdown-link {
  display: block;
  padding: 12px 20px;
  color: var(--text-color);
  text-decoration: none;
  transition: var(--transition);
}

.dropdown-link:hover {
  background: var(--bg-light);
  color: var(--primary-color);
  padding-left: 25px;
}

.nav-cta {
  display: flex;
  align-items: center;
}

.btn-nav-cta {
  background: var(--accent-color);
  color: white;
  padding: 8px 20px;
  border-radius: 4px;
  text-decoration: none;
  font-size: 0.9rem;
  font-weight: 500;
  transition: var(--transition);
  display: flex;
  align-items: center;
  gap: 6px;
}

.btn-nav-cta:hover {
  background: var(--accent-hover);
  transform: translateY(-2px);
}

.contact-phone:hover .phone-number {
  color: var(--accent-hover);
}

.nav-cta {
  display: flex;
  align-items: center;
}

.btn-nav-cta {
  background: var(--accent-color);
  color: white;
  padding: 8px 20px;
  border-radius: 4px;
  text-decoration: none;
  font-size: 0.9rem;
  font-weight: 500;
  transition: var(--transition);
  display: flex;
  align-items: center;
  gap: 6px;
}

.btn-nav-cta:hover {
  background: var(--accent-hover);
  transform: translateY(-2px);
  box-shadow: var(--shadow-md);
}

.mobile-overlay {
  display: none;
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: rgba(0, 0, 0, 0.5);
  z-index: 998;
  opacity: 0;
  visibility: hidden;
  transition: var(--transition);
}

.mobile-overlay.active {
  opacity: 1;
  visibility: visible;
}

.hero-banner {
  position: relative;
  background: linear-gradient(135deg, var(--primary-dark) 0%, var(--primary-color) 100%);
  color: white;
  padding: 100px 0;
  overflow: hidden;
}

.hero-overlay {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: url('data:image/svg+xml,<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 100 100"><circle cx="50" cy="50" r="40" fill="none" stroke="rgba(255,255,255,0.05)" stroke-width="1"/></svg>');
  background-size: 200px 200px;
  opacity: 0.3;
}

.hero-content {
  position: relative;
  text-align: center;
  max-width: 800px;
  margin: 0 auto;
}

.hero-title {
  font-size: 3rem;
  font-weight: 700;
  margin-bottom: 20px;
  line-height: 1.2;
}

.title-highlight {
  display: block;
  color: var(--accent-color);
  margin-bottom: 10px;
}

.title-sub {
  display: block;
  font-size: 1.5rem;
  font-weight: 400;
  opacity: 0.9;
}

.hero-desc {
  font-size: 1.25rem;
  margin-bottom: 40px;
  opacity: 0.9;
}

.hero-cta {
  display: flex;
  gap: 20px;
  justify-content: center;
  flex-wrap: wrap;
}

.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 14px 32px;
  border-radius: 6px;
  text-decoration: none;
  font-size: 1rem;
  font-weight: 500;
  transition: var(--transition);
  cursor: pointer;
  border: none;
}

.btn-primary {
  background: var(--accent-color);
  color: white;
}

.btn-primary:hover {
  background: var(--accent-hover);
  transform: translateY(-2px);
  box-shadow: var(--shadow-lg);
}

.btn-secondary {
  background: transparent;
  color: white;
  border: 2px solid white;
}

.btn-secondary:hover {
  background: white;
  color: var(--primary-color);
}

.btn-large {
  padding: 16px 40px;
  font-size: 1.1rem;
}

.btn-lg {
  padding: 12px 28px;
  font-size: 1rem;
}

.btn-outline {
  background: transparent;
  color: var(--primary-color);
  border: 2px solid var(--primary-color);
}

.btn-outline:hover {
  background: var(--primary-color);
  color: white;
}

.section {
  padding: 80px 0;
}

.section-header {
  text-align: center;
  margin-bottom: 60px;
}

.section-header.light {
  color: white;
}

.section-tag {
  display: inline-block;
  background: var(--primary-color);
  color: white;
  padding: 6px 16px;
  border-radius: 20px;
  font-size: 0.875rem;
  font-weight: 500;
  margin-bottom: 16px;
  text-transform: uppercase;
  letter-spacing: 1px;
}

.section-header.light .section-tag {
  background: rgba(255, 255, 255, 0.2);
}

.section-title {
  font-size: 2.5rem;
  font-weight: 700;
  margin-bottom: 16px;
  color: var(--primary-color);
}

.section-header.light .section-title {
  color: white;
}

.section-desc {
  font-size: 1.125rem;
  color: var(--text-light);
  max-width: 600px;
  margin: 0 auto;
}

.section-header.light .section-desc {
  color: rgba(255, 255, 255, 0.9);
}

/* SEO钩子样式 */
.seo-hooks {
  display: flex;
  flex-wrap: wrap;
  gap: 16px;
  margin-top: 24px;
  padding: 24px;
  background: linear-gradient(135deg, rgba(255, 107, 53, 0.05) 0%, rgba(255, 107, 53, 0.02) 100%);
  border-radius: 12px;
  border: 1px solid rgba(255, 107, 53, 0.2);
}

.hook-item {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 12px 20px;
  background: white;
  border-radius: 25px;
  border: 1px solid rgba(255, 107, 53, 0.1);
  transition: all 0.3s ease;
  font-size: 0.95rem;
  color: var(--text-color);
  box-shadow: 0 2px 4px rgba(0, 0, 0, 0.05);
}

.hook-item:hover {
  transform: translateY(-3px);
  box-shadow: 0 4px 12px rgba(255, 107, 53, 0.2);
  border-color: var(--primary-color);
  background: rgba(255, 255, 255, 0.95);
}

.hook-icon {
  font-size: 1.3rem;
  line-height: 1;
  color: var(--primary-color);
}

.hook-text {
  font-weight: 500;
  color: var(--text-color);
}

/* 响应式设计 */
@media (max-width: 768px) {
  .seo-hooks {
    flex-direction: column;
    align-items: flex-start;
    padding: 20px;
  }
  
  .hook-item {
    width: 100%;
    justify-content: flex-start;
    padding: 10px 16px;
  }
}

/* 产品区域钩子特殊样式 */
.products-list-header .seo-hooks {
  margin-top: 16px;
}

/* 英雄区域钩子特殊样式 */
.hero-content .seo-hooks {
  margin: 24px 0;
  background: rgba(255, 255, 255, 0.1);
  border-color: rgba(255, 255, 255, 0.2);
}

.hero-content .hook-item {
  background: rgba(255, 255, 255, 0.9);
  border-color: rgba(255, 255, 255, 0.3);
}

/* 无背景钩子样式 */
.seo-hooks.no-bg {
  background: none;
  border: none;
  padding: 0;
  margin-top: 16px;
}

.seo-hooks.no-bg .hook-item {
  background: white;
  border: 1px solid rgba(255, 107, 53, 0.1);
  box-shadow: 0 2px 4px rgba(0, 0, 0, 0.05);
  margin-right: 12px;
  margin-bottom: 8px;
}

/* 确保钩子在一行显示 */
@media (min-width: 769px) {
  .seo-hooks.no-bg {
    flex-wrap: nowrap;
    overflow-x: auto;
    padding-bottom: 8px;
  }
  
  .seo-hooks.no-bg .hook-item {
    flex-shrink: 0;
  }
}

.products-list-header .section-title {
  font-size: 1.75rem;
  margin-bottom: 12px;
}

.products-list-header .section-desc {
  font-size: 1rem;
  text-align: left;
  max-width: none;
  margin-bottom: 0;
  text-indent: 2em;
}

@media (max-width: 768px) {
  .products-list-header .section-title {
    font-size: 1.5rem;
  }
}

.class-description {
  background: white;
  padding: 32px;
  border-radius: 12px;
  margin-bottom: 48px;
  box-shadow: var(--shadow-sm);
  border: 1px solid var(--border-color);
  line-height: 1.8;
  color: var(--text-color);
}

.class-description h2 {
  font-size: 1.5rem;
  font-weight: 600;
  margin-bottom: 16px;
  color: var(--primary-color);
}

.class-description h3 {
  font-size: 1.25rem;
  font-weight: 600;
  margin-bottom: 12px;
  color: var(--primary-color);
  margin-top: 24px;
}

.class-description p {
  margin-bottom: 16px;
}

.class-description ul {
  margin-bottom: 16px;
  padding-left: 24px;
}

.class-description li {
  margin-bottom: 8px;
  list-style-type: disc;
}

.products-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 30px;
}

.product-card {
  background: white;
  border-radius: 12px;
  overflow: hidden;
  box-shadow: var(--shadow-sm);
  transition: var(--transition);
  border: 1px solid var(--border-color);
}

.product-card:hover {
  transform: translateY(-8px);
  box-shadow: var(--shadow-lg);
  border-color: var(--primary-color);
}

.product-image {
  position: relative;
  aspect-ratio: 4/3;
  overflow: hidden;
}

.product-image img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.5s;
}

.product-card:hover .product-image img {
  transform: scale(1.1);
}

.product-overlay {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: rgba(0, 0, 0, 0.6);
  display: flex;
  align-items: center;
  justify-content: center;
  opacity: 0;
  transition: var(--transition);
}

.product-card:hover .product-overlay {
  opacity: 1;
}

.btn-view {
  background: white;
  color: var(--primary-color);
  padding: 10px 24px;
  border-radius: 4px;
  text-decoration: none;
  font-weight: 500;
  transition: var(--transition);
}

.btn-view:hover {
  background: var(--primary-color);
  color: white;
}

.product-info {
  padding: 24px;
}

.product-name {
  font-size: 1.25rem;
  font-weight: 600;
  margin-bottom: 12px;
  color: var(--text-color);
}

.product-name a {
  color: inherit;
  text-decoration: none;
}

.product-name a:hover {
  color: var(--primary-color);
}

.product-desc {
  font-size: 0.95rem;
  color: var(--text-light);
  margin-bottom: 16px;
  line-height: 1.6;
}

.product-action {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 12px;
}

.product-link {
  color: var(--primary-color);
  text-decoration: none;
  font-weight: 500;
  transition: var(--transition);
}

.product-link:hover {
  color: var(--accent-color);
}

.product-cta {
  background: var(--accent-color);
  color: white;
  padding: 8px 16px;
  border-radius: 4px;
  text-decoration: none;
  font-size: 0.875rem;
  font-weight: 500;
  transition: var(--transition);
}

.product-cta:hover {
  background: var(--accent-hover);
}

.scenarios-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 24px;
}

.scenario-card {
  background: white;
  padding: 32px;
  border-radius: 12px;
  text-align: center;
  box-shadow: var(--shadow-sm);
  transition: var(--transition);
  border: 1px solid var(--border-color);
}

.scenario-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-md);
  border-color: var(--primary-color);
}

.scenario-icon {
  font-size: 3rem;
  margin-bottom: 20px;
  color: var(--primary-color);
}

.scenario-icon svg {
  width: 64px;
  height: 64px;
}

.scenario-card h3 {
  font-size: 1.25rem;
  font-weight: 600;
  margin-bottom: 12px;
  color: var(--primary-color);
}

.scenario-card p {
  font-size: 0.95rem;
  color: var(--text-light);
  line-height: 1.6;
}

.advantages-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: 30px;
}

.advantage-card {
  text-align: center;
  padding: 32px;
}

.advantage-icon {
  font-size: 3rem;
  margin-bottom: 20px;
}

.advantage-card h3 {
  font-size: 1.25rem;
  font-weight: 600;
  margin-bottom: 12px;
  color: var(--text-color);
}

.advantage-card p {
  font-size: 0.95rem;
  color: var(--text-light);
  line-height: 1.6;
}

.news-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 30px;
}

.news-column {
  background: white;
  padding: 24px;
  border-radius: 12px;
  box-shadow: var(--shadow-sm);
}

.news-column-title {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 1.25rem;
  font-weight: 600;
  margin-bottom: 20px;
  padding-bottom: 16px;
  border-bottom: 2px solid var(--border-color);
}

.news-column-title a {
  color: var(--primary-color);
  text-decoration: none;
}

.news-column-title a:hover {
  color: var(--accent-color);
}

.news-icon {
  font-size: 1.5rem;
}

.news-list {
  list-style: none;
}

.news-list li {
  padding: 12px 0;
  border-bottom: 1px solid var(--border-color);
}

.news-list li:last-child {
  border-bottom: none;
}

.news-list a {
  color: var(--text-color);
  text-decoration: none;
  font-size: 0.95rem;
  line-height: 1.5;
  display: block;
  transition: var(--transition);
}

.news-list a:hover {
  color: var(--primary-color);
  padding-left: 8px;
}

.section-cta {
  background: linear-gradient(135deg, var(--primary-dark) 0%, var(--primary-color) 100%);
  color: white;
  text-align: center;
}

.cta-content h2 {
  font-size: 2.5rem;
  font-weight: 700;
  margin-bottom: 20px;
}

.cta-content > p {
  font-size: 1.25rem;
  margin-bottom: 40px;
  opacity: 0.9;
}

.cta-buttons {
  display: flex;
  gap: 20px;
  justify-content: center;
  flex-wrap: wrap;
}

.breadcrumb-wrapper {
  background: var(--bg-light);
  padding: 16px 0;
  border-bottom: 1px solid var(--border-color);
}

.breadcrumb {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 8px;
  font-size: 0.9rem;
  list-style: none;
  margin: 0;
  padding: 0;
}

.breadcrumb li {
  display: flex;
  align-items: center;
  white-space: nowrap;
}

.breadcrumb a {
  color: var(--text-light);
  text-decoration: none;
  transition: var(--transition);
}

.breadcrumb a:hover {
  color: var(--primary-color);
}

.breadcrumb .separator {
  color: var(--text-muted);
  padding: 0 4px;
}

.breadcrumb .breadcrumb-current {
  color: var(--text-muted);
}

.product-page {
  padding: 40px 0;
}

.product-header {
  text-align: center;
  margin-bottom: 40px;
}

.product-main-title {
  font-size: 2.5rem;
  font-weight: 700;
  color: var(--primary-color);
  margin-bottom: 12px;
}

.product-subtitle {
  font-size: 1.125rem;
  color: var(--text-light);
}

.product-core {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 40px;
  margin-bottom: 40px;
}

.product-figure {
  border-radius: 12px;
  overflow: hidden;
  box-shadow: var(--shadow-md);
}

.product-figure img {
  width: 100%;
  height: auto;
  display: block;
}

.product-keyinfo {
  display: flex;
  flex-direction: column;
  gap: 24px;
}

.product-summary-box {
  background: var(--bg-light);
  padding: 24px;
  border-radius: 8px;
  border-left: 4px solid var(--primary-color);
}

.product-summary-box .section-title {
  font-size: 1.25rem;
  margin-bottom: 12px;
}

.product-desc {
  line-height: 1.8;
  color: var(--text-light);
}

.product-highlights {
  background: white;
  padding: 24px;
  border-radius: 8px;
  border: 1px solid var(--border-color);
}

.highlight-list {
  list-style: none;
  display: grid;
  gap: 12px;
}

.highlight-list li {
  display: flex;
  align-items: center;
  gap: 12px;
  color: var(--text-color);
}

.highlight-icon {
  color: var(--accent-color);
  font-weight: bold;
  font-size: 1.25rem;
}

.product-contact {
  background: linear-gradient(135deg, var(--primary-color) 0%, var(--primary-dark) 100%);
  color: white;
  padding: 24px;
  border-radius: 8px;
}

.product-contact-simple {
  background: linear-gradient(135deg, var(--primary-color) 0%, var(--primary-dark) 100%);
  color: white;
  padding: 16px 24px;
  border-radius: 8px;
  display: flex;
  align-items: center;
  gap: 12px;
  margin-bottom: 20px;
}

.product-contact-simple .contact-label {
  font-size: 1rem;
  font-weight: 600;
}

.product-contact-simple .contact-phone {
  color: white;
  font-size: 1.25rem;
  font-weight: 700;
  text-decoration: none;
}

.product-contact-simple .contact-phone:hover {
  text-decoration: underline;
}

/* 厂家链接样式 */
.manufacturer-link {
  color: var(--accent-color);
  font-weight: 600;
  text-decoration: none;
  padding: 2px 6px;
  border-radius: 4px;
  background-color: rgba(255, 107, 53, 0.1);
  border: 1px solid var(--accent-color);
  transition: var(--transition);
  position: relative;
  margin: 0 4px;
}

.manufacturer-link:hover {
  color: var(--accent-hover);
  background-color: rgba(255, 107, 53, 0.2);
  text-decoration: none;
  transform: translateY(-1px);
  box-shadow: var(--shadow-sm);
}

.manufacturer-link::after {
  content: '→';
  margin-left: 4px;
  font-size: 0.85rem;
  opacity: 0.8;
  transition: var(--transition);
}

.manufacturer-link:hover::after {
  margin-left: 8px;
  opacity: 1;
}

.price-info {
  margin-bottom: 16px;
}

.price-label {
  font-size: 0.95rem;
  opacity: 0.9;
}

.price-range {
  font-size: 2rem;
  font-weight: 700;
  margin-left: 12px;
}

.price-note {
  font-size: 0.875rem;
  opacity: 0.8;
}

.contact-info {
  display: flex;
  align-items: center;
  gap: 12px;
}

.contact-label {
  font-size: 0.95rem;
  opacity: 0.9;
}

.contact-value {
  font-size: 1.5rem;
  font-weight: 600;
  color: white;
  text-decoration: none;
}

.product-actions-bar {
  display: flex;
  gap: 16px;
  margin-bottom: 40px;
  flex-wrap: wrap;
}

.btn-consult,
.btn-quote {
  flex: 1;
  justify-content: center;
  min-width: 200px;
}

.service-tags {
  display: flex;
  gap: 16px;
  margin-bottom: 40px;
  flex-wrap: wrap;
}

.service-tag {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 12px 20px;
  background: var(--bg-light);
  border-radius: 8px;
  font-size: 0.95rem;
  color: var(--text-color);
  border: 1px solid var(--border-color);
}

.service-tag img {
  width: 24px;
  height: 24px;
}

.product-content-section {
  margin-bottom: 60px;
}

.section-main-title {
  font-size: 2rem;
  font-weight: 700;
  color: var(--primary-color);
  margin-bottom: 30px;
  text-align: center;
}

.product-content {
  background: white;
  padding: 40px;
  border-radius: 12px;
  box-shadow: var(--shadow-sm);
  line-height: 1.8;
  color: var(--text-color);
}

.scenarios-section {
  margin-bottom: 60px;
}

.section-intro {
  text-align: center;
  font-size: 1.125rem;
  color: var(--text-light);
  margin-bottom: 40px;
}

.scenarios-list {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 24px;
}

.scenario-item {
  background: white;
  padding: 32px;
  border-radius: 12px;
  box-shadow: var(--shadow-sm);
  border: 1px solid var(--border-color);
  transition: var(--transition);
}

.scenario-item:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-md);
  border-color: var(--primary-color);
}

.scenario-item h3 {
  font-size: 1.25rem;
  font-weight: 600;
  color: var(--primary-color);
  margin-bottom: 12px;
}

.scenario-item p {
  font-size: 0.95rem;
  color: var(--text-light);
  line-height: 1.6;
}

.faq-section {
  margin-bottom: 60px;
}

.faq-list {
  max-width: 800px;
  margin: 0 auto;
}

.faq-item {
  background: white;
  padding: 24px;
  margin-bottom: 16px;
  border-radius: 8px;
  box-shadow: var(--shadow-sm);
  border: 1px solid var(--border-color);
}

.faq-item dt {
  font-size: 1.125rem;
  font-weight: 600;
  color: var(--primary-color);
  margin-bottom: 12px;
}

.faq-item dd {
  font-size: 0.95rem;
  color: var(--text-light);
  line-height: 1.6;
}

.related-section {
  margin-bottom: 60px;
}

.news-detail-section {
  padding: 40px 0;
}

.news-detail {
  max-width: 1000px;
  margin: 0 auto;
}

.news-detail-header {
  text-align: center;
  margin-bottom: 40px;
}

.news-detail h1 {
  font-size: 2.5rem;
  font-weight: 700;
  color: var(--primary-color);
  margin-bottom: 20px;
}

.news-meta {
  display: flex;
  justify-content: center;
  gap: 24px;
  flex-wrap: wrap;
  font-size: 0.95rem;
  color: var(--text-muted);
}

.news-meta-item {
  display: flex;
  align-items: center;
  gap: 8px;
}

.news-detail-content {
  background: white;
  padding: 40px;
  border-radius: 12px;
  box-shadow: var(--shadow-sm);
  line-height: 1.8;
  color: var(--text-color);
  margin-bottom: 40px;
}

.news-detail-actions {
  display: flex;
  gap: 16px;
  justify-content: center;
  margin-bottom: 40px;
  flex-wrap: wrap;
}

.action-btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 14px 32px;
  border-radius: 6px;
  text-decoration: none;
  font-size: 1rem;
  font-weight: 500;
  transition: var(--transition);
}

.action-btn {
  background: var(--accent-color);
  color: white;
}

.action-btn.secondary {
  background: var(--primary-color);
  color: white;
}

.action-btn:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow-md);
}

.related-news-section {
  background: var(--bg-light);
  padding: 40px;
  border-radius: 12px;
}

.related-news-list {
  display: grid;
  gap: 24px;
}

.related-news-item {
  background: white;
  padding: 24px;
  border-radius: 8px;
  box-shadow: var(--shadow-sm);
  transition: var(--transition);
}

.related-news-item:hover {
  transform: translateX(8px);
  box-shadow: var(--shadow-md);
}

.related-news-title {
  font-size: 1.125rem;
  font-weight: 600;
  margin-bottom: 12px;
}

.related-news-title a {
  color: var(--primary-color);
  text-decoration: none;
}

.related-news-title a:hover {
  color: var(--accent-color);
}

.related-news-desc {
  font-size: 0.95rem;
  color: var(--text-light);
  line-height: 1.6;
  margin-bottom: 12px;
}

.related-news-meta {
  display: flex;
  gap: 16px;
  font-size: 0.875rem;
  color: var(--text-muted);
}

.section-about {
  padding: 80px 0;
}

.about-content {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 60px;
  align-items: center;
}

.about-image {
  position: relative;
  border-radius: 12px;
  overflow: hidden;
  box-shadow: var(--shadow-lg);
}

.about-image img {
  width: 100%;
  height: auto;
  display: block;
}

.about-experience {
  position: absolute;
  bottom: 30px;
  right: 30px;
  background: var(--accent-color);
  color: white;
  padding: 24px;
  border-radius: 8px;
  text-align: center;
  box-shadow: var(--shadow-lg);
}

.exp-number {
  font-size: 3rem;
  font-weight: 700;
  line-height: 1;
  display: block;
}

.exp-text {
  font-size: 0.95rem;
  line-height: 1.3;
  opacity: 0.9;
}

.about-text {
  display: flex;
  flex-direction: column;
  gap: 20px;
}

.about-lead {
  font-size: 1.25rem;
  color: var(--primary-color);
  font-weight: 500;
}

.about-features-inline {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
}

.feature-tag {
  background: var(--bg-light);
  padding: 8px 16px;
  border-radius: 20px;
  font-size: 0.9rem;
  color: var(--text-color);
  border: 1px solid var(--border-color);
}

.section-advantages {
  background: var(--bg-light);
}

.section-contact-hero {
  padding: 60px 0;
  text-align: center;
}

.contact-intro {
  max-width: 800px;
  margin: 0 auto 60px;
}

.contact-intro-text {
  font-size: 1.125rem;
  color: var(--text-light);
  line-height: 1.8;
}

.section-wechat-qrcode {
  padding: 60px 0;
  background: var(--bg-light);
}

.wechat-content {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 60px;
  align-items: center;
  max-width: 900px;
  margin: 0 auto;
}

.wechat-info h2 {
  font-size: 2rem;
  font-weight: 700;
  color: var(--primary-color);
  margin-bottom: 20px;
}

.wechat-info > p {
  font-size: 1.125rem;
  color: var(--text-light);
  margin-bottom: 24px;
}

.wechat-benefits {
  list-style: none;
  display: grid;
  gap: 12px;
}

.wechat-benefits li {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 12px 0;
  color: var(--text-color);
  font-size: 1rem;
}

.wechat-benefits li::before {
  content: '✓';
  color: var(--accent-color);
  font-weight: bold;
  font-size: 1.25rem;
}

.wechat-qrcode {
  text-align: center;
}

.wechat-qrcode img {
  width: 300px;
  height: 300px;
  border-radius: 12px;
  box-shadow: var(--shadow-md);
  margin-bottom: 16px;
}

.wechat-qrcode p {
  font-size: 0.95rem;
  color: var(--text-muted);
}

.section-sales-area {
  padding: 60px 0;
}

.sales-content {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 40px;
}

.sales-domestic,
.sales-international {
  background: white;
  padding: 32px;
  border-radius: 12px;
  box-shadow: var(--shadow-sm);
  border: 1px solid var(--border-color);
}

.sales-domestic h3,
.sales-international h3 {
  display: flex;
  align-items: center;
  gap: 12px;
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--primary-color);
  margin-bottom: 16px;
}

.sales-domestic h3 svg,
.sales-international h3 svg {
  width: 32px;
  height: 32px;
}

.sales-domestic > p,
.sales-international > p {
  font-size: 0.95rem;
  color: var(--text-light);
  margin-bottom: 20px;
}

.sales-regions {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-bottom: 16px;
}

.region-tag {
  background: var(--bg-light);
  padding: 8px 16px;
  border-radius: 20px;
  font-size: 0.875rem;
  color: var(--text-color);
  border: 1px solid var(--border-color);
}

.sales-note {
  font-size: 0.9rem;
  color: var(--text-muted);
  font-style: italic;
}

.section-service-promise {
  padding: 60px 0;
  background: var(--bg-light);
}

.promise-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 24px;
}

.promise-item {
  background: white;
  padding: 32px;
  border-radius: 12px;
  text-align: center;
  box-shadow: var(--shadow-sm);
  border: 1px solid var(--border-color);
  transition: var(--transition);
}

.promise-item:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-md);
  border-color: var(--primary-color);
}

.promise-number {
  font-size: 3rem;
  font-weight: 700;
  color: var(--accent-color);
  line-height: 1;
  margin-bottom: 16px;
}

.promise-item h3 {
  font-size: 1.25rem;
  font-weight: 600;
  color: var(--primary-color);
  margin-bottom: 12px;
}

.promise-item p {
  font-size: 0.95rem;
  color: var(--text-light);
  line-height: 1.6;
}

.section-contact-cta {
  padding: 80px 0;
  background: linear-gradient(135deg, var(--primary-dark) 0%, var(--primary-color) 100%);
  color: white;
  text-align: center;
}

.section-contact-cta .cta-content h2 {
  font-size: 2.5rem;
  font-weight: 700;
  margin-bottom: 20px;
}

.section-contact-cta .cta-content > p {
  font-size: 1.25rem;
  margin-bottom: 40px;
  opacity: 0.9;
}

.section-contact-cta .cta-buttons .btn {
  color: white;
}

.section-contact-cta .cta-buttons .btn-outline {
  color: white;
  border-color: white;
}

.section-contact-cta .cta-buttons .btn-outline:hover {
  background: white;
  color: var(--primary-color);
}

.site-footer {
  background: var(--bg-dark);
  color: white;
  padding: 60px 0 20px;
}

.footer-content {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: 40px;
  margin-bottom: 40px;
}

.footer-section h3 {
  font-size: 1.25rem;
  font-weight: 600;
  margin-bottom: 20px;
  color: white;
}

.footer-section p {
  font-size: 0.95rem;
  line-height: 1.8;
  color: rgba(255, 255, 255, 0.8);
  margin-bottom: 12px;
}

.footer-section ul {
  list-style: none;
}

.footer-section li {
  margin-bottom: 12px;
}

.footer-section a {
  color: rgba(255, 255, 255, 0.8);
  text-decoration: none;
  font-size: 0.95rem;
  transition: var(--transition);
}

.footer-section a:hover {
  color: var(--accent-color);
  padding-left: 8px;
}

.footer-bottom {
  text-align: center;
  padding-top: 20px;
  border-top: 1px solid rgba(255, 255, 255, 0.1);
}

.footer-bottom p {
  font-size: 0.875rem;
  color: rgba(255, 255, 255, 0.6);
}

.footer-contact-info {
  display: flex;
  flex-direction: column;
  gap: 12px;
  margin-top: 16px;
}

.footer-contact-item {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 0.95rem;
}

.footer-contact-item .contact-icon {
  font-size: 1.25rem;
}

.footer-contact-item a {
  color: rgba(255, 255, 255, 0.8);
  text-decoration: none;
  transition: var(--transition);
}

.footer-contact-item a:hover {
  color: var(--accent-color);
}

.footer-contact-item span {
  color: rgba(255, 255, 255, 0.8);
}

.footer-links-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
}

.footer-links-tags a {
  display: inline-block;
  padding: 8px 16px;
  background: rgba(255, 255, 255, 0.1);
  color: rgba(255, 255, 255, 0.9);
  text-decoration: none;
  border-radius: 4px;
  transition: var(--transition);
  font-size: 0.9rem;
}

.footer-links-tags a:hover {
  background: var(--accent-color);
  color: white;
}

.service-list {
  list-style: none;
}

.service-list li {
  display: flex;
  align-items: center;
  gap: 10px;
  margin-bottom: 12px;
  color: rgba(255, 255, 255, 0.8);
  font-size: 0.95rem;
}

/* 页脚服务承诺样式 */
.footer-service .service-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 16px;
}

.footer-service .service-item {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 12px;
  background: rgba(255, 255, 255, 0.05);
  border-radius: 6px;
  transition: var(--transition);
}

.footer-service .service-item:hover {
  background: rgba(255, 255, 255, 0.1);
}

.footer-service .service-item span:not(.service-icon) {
  color: rgba(255, 255, 255, 0.9);
  font-size: 0.9rem;
}

.footer-service .service-icon {
  color: var(--accent-color);
  font-weight: bold;
  font-size: 1.1rem;
  flex-shrink: 0;
}

.footer-seo {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 30px;
  padding: 40px 0;
  border-top: 1px solid rgba(255, 255, 255, 0.1);
  margin-top: 40px;
}

.seo-section h4 {
  font-size: 1rem;
  font-weight: 600;
  color: white;
  margin-bottom: 16px;
}

.seo-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.seo-tags a {
  display: inline-block;
  padding: 6px 14px;
  background: rgba(255, 255, 255, 0.05);
  border: 1px solid rgba(255, 255, 255, 0.1);
  border-radius: 4px;
  color: rgba(255, 255, 255, 0.7);
  text-decoration: none;
  font-size: 0.85rem;
  transition: var(--transition);
}

.seo-tags a:hover {
  background: var(--accent-color);
  color: white;
  border-color: var(--accent-color);
}

.footer-links-inline {
  display: flex;
  align-items: center;
  gap: 12px;
  margin-top: 16px;
  font-size: 0.875rem;
}

.footer-links-inline a {
  color: rgba(255, 255, 255, 0.6);
  text-decoration: none;
  transition: var(--transition);
}

.footer-links-inline a:hover {
  color: var(--accent-color);
}

.footer-links-inline span {
  color: rgba(255, 255, 255, 0.3);
}

@media (max-width: 1024px) {
  .footer-seo {
    grid-template-columns: 1fr;
    gap: 24px;
  }
  
  .footer-content {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (max-width: 768px) {
  .footer-content {
    grid-template-columns: 1fr;
  }
  
  .footer-service .service-grid {
    grid-template-columns: repeat(2, 1fr);
    gap: 12px;
  }
  
  .footer-service .service-item {
    padding: 10px;
    font-size: 0.85rem;
  }
  
  .footer-service .service-item span:not(.service-icon) {
    font-size: 0.85rem;
  }
  
  .footer-links-tags {
    gap: 8px;
  }
  
  .footer-links-tags a {
    padding: 6px 12px;
    font-size: 0.85rem;
  }
  
  .footer-seo {
    padding: 30px 0;
    gap: 20px;
  }
  
  .footer-links-inline {
    flex-wrap: wrap;
    gap: 8px;
  }
}

@media (max-width: 480px) {
  .footer-contact-info {
    gap: 8px;
  }
  
  .footer-contact-item {
    font-size: 0.875rem;
  }
  
  .service-list li {
    font-size: 0.875rem;
  }
  
  .seo-tags a {
    padding: 4px 10px;
    font-size: 0.8rem;
  }
}

.back-to-top {
  position: fixed;
  bottom: 30px;
  right: 30px;
  width: 50px;
  height: 50px;
  background: var(--accent-color);
  color: white;
  border: none;
  border-radius: 50%;
  cursor: pointer;
  font-size: 1.5rem;
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: var(--shadow-md);
  opacity: 0;
  visibility: hidden;
  transition: var(--transition);
  z-index: 999;
}

.back-to-top.visible {
  opacity: 1;
  visibility: visible;
}

.back-to-top:hover {
  background: var(--accent-hover);
  transform: translateY(-4px);
  box-shadow: var(--shadow-lg);
}

.mobile-nav-phone {
  display: none;
  align-items: center;
  justify-content: center;
  width: 40px;
  height: 40px;
  background: var(--primary-color);
  color: white;
  border: none;
  border-radius: 50%;
  text-decoration: none;
  transition: var(--transition);
}

.mobile-nav-phone:hover {
  background: var(--primary-hover);
  transform: scale(1.1);
  box-shadow: var(--shadow-md);
}

.mobile-nav-phone .phone-icon {
  font-size: 1.2rem;
}

.pagination-wrapper {
  margin-top: 40px;
}

.pagination {
  display: flex;
  justify-content: center;
  align-items: center;
  gap: 8px;
  flex-wrap: wrap;
}

.pagination a,
.pagination span {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-width: 40px;
  height: 40px;
  padding: 0 15px;
  border: 1px solid var(--border-color);
  border-radius: 6px;
  color: var(--text-color);
  text-decoration: none;
  font-size: 14px;
  background: white;
  transition: var(--transition);
}

.pagination a:hover {
  background: var(--primary-color);
  color: white;
  border-color: var(--primary-color);
}

.pagination span.current {
  background: var(--primary-color);
  color: white;
  border-color: var(--primary-color);
}

.no-data {
  text-align: center;
  padding: 60px 20px;
  color: var(--text-muted);
  font-size: 1rem;
  background: white;
  border-radius: 8px;
}

.news-container {
  padding: 40px 0;
  background: var(--bg-light);
}

.news-list-section {
  background: white;
  padding: 32px;
  border-radius: 12px;
  box-shadow: var(--shadow-sm);
}

.news-item {
  padding: 24px;
  margin-bottom: 16px;
  background: white;
  border-radius: 8px;
  box-shadow: var(--shadow-sm);
  border: 1px solid var(--border-color);
  transition: var(--transition);
}

.news-item:hover {
  transform: translateX(8px);
  box-shadow: var(--shadow-md);
  border-color: var(--primary-color);
}

.news-item-title {
  font-size: 1.25rem;
  font-weight: 600;
  margin-bottom: 12px;
  color: var(--primary-color);
}

.news-item-title a {
  color: inherit;
  text-decoration: none;
}

.news-item-title a:hover {
  color: var(--accent-color);
}

.news-item-desc {
  font-size: 0.95rem;
  color: var(--text-light);
  line-height: 1.6;
  margin-bottom: 12px;
}

.news-item-meta {
  font-size: 0.875rem;
  color: var(--text-muted);
}

.product-detail-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 40px;
  margin-bottom: 60px;
}

.product-image-container {
  position: relative;
}

.product-image {
  border-radius: 12px;
  overflow: hidden;
  box-shadow: var(--shadow-md);
  margin-bottom: 24px;
}

.product-image img {
  width: 100%;
  height: auto;
  display: block;
}

.product-features {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 16px;
}

.feature-item {
  text-align: center;
  padding: 20px;
  background: var(--bg-light);
  border-radius: 8px;
}

.feature-item .feature-icon {
  font-size: 2rem;
  margin-bottom: 12px;
}

.feature-item h3 {
  font-size: 1rem;
  font-weight: 600;
  margin-bottom: 8px;
  color: var(--text-color);
}

.feature-item p {
  font-size: 0.875rem;
  color: var(--text-muted);
}

.product-info-container {
  display: flex;
  flex-direction: column;
  gap: 24px;
}

.product-title {
  font-size: 2rem;
  font-weight: 700;
  color: var(--primary-color);
  margin-bottom: 12px;
}

.product-meta {
  font-size: 0.95rem;
  color: var(--text-muted);
}

.product-description {
  background: var(--bg-light);
  padding: 24px;
  border-radius: 8px;
  border-left: 4px solid var(--primary-color);
}

.product-description p {
  line-height: 1.8;
  color: var(--text-light);
  margin-bottom: 12px;
}

.product-keywords {
  font-size: 0.9rem;
  color: var(--text-muted);
}

.contact-info {
  background: linear-gradient(135deg, var(--primary-color) 0%, var(--primary-dark) 100%);
  color: white;
  padding: 24px;
  border-radius: 8px;
}

.contact-item {
  display: flex;
  align-items: center;
  gap: 16px;
}

.contact-icon {
  font-size: 2rem;
}

.contact-content {
  display: flex;
  flex-direction: column;
}

.contact-label {
  font-size: 0.875rem;
  opacity: 0.9;
}

.contact-value {
  font-size: 1.5rem;
  font-weight: 600;
  color: white;
  text-decoration: none;
}

.desktop-features {
  display: grid;
}

.mobile-features {
  display: none;
}

.section-related-products {
  margin-top: 60px;
}

.section-related-products .section-header {
  text-align: left;
  margin-bottom: 30px;
}

.section-related-products .section-title {
  font-size: 1.75rem;
}

.product-application {
  margin-bottom: 60px;
}

.application-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 40px;
}

.application-category {
  background: white;
  padding: 32px;
  border-radius: 12px;
  box-shadow: var(--shadow-sm);
  border: 1px solid var(--border-color);
}

.application-category h3 {
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--primary-color);
  margin-bottom: 24px;
  display: flex;
  align-items: center;
  gap: 12px;
}

.application-items {
  display: grid;
  gap: 24px;
}

.application-item h4 {
  font-size: 1.125rem;
  font-weight: 600;
  color: var(--text-color);
  margin-bottom: 8px;
}

.application-item p {
  font-size: 0.95rem;
  color: var(--text-light);
  line-height: 1.6;
}

@media (max-width: 1024px) {
  .container {
    padding: 0 16px;
  }
  
  .hero-title {
    font-size: 2.5rem;
  }
  
  .section-title {
    font-size: 2rem;
  }
  
  .product-core {
    grid-template-columns: 1fr;
    gap: 30px;
  }
  
  .about-content {
    grid-template-columns: 1fr;
    gap: 40px;
  }
  
  .wechat-content {
    grid-template-columns: 1fr;
    gap: 40px;
  }
  
  .sales-content {
    grid-template-columns: 1fr;
  }
  
  .application-grid {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 768px) {
  :root {
    --header-height: 60px;
    --nav-height: 50px;
  }
  
  .mobile-nav-phone {
    display: flex;
  }
  
  .mobile-menu-toggle {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 4px;
  }
  
  .hamburger {
    width: 24px;
    height: 2px;
    background: white;
    transition: var(--transition);
  }
  
  .nav-menu {
    position: fixed;
    top: calc(var(--header-height) + var(--nav-height));
    left: 0;
    width: 100%;
    height: calc(100vh - var(--header-height) - var(--nav-height));
    background: white;
    flex-direction: column;
    padding: 20px;
    overflow-y: auto;
    transform: translateX(-100%);
    transition: transform 0.3s;
    z-index: 1001;
  }
  
  .nav-menu.active {
    transform: translateX(0);
  }
  
  .nav-link {
    color: var(--text-color);
    padding: 16px;
    border-bottom: 1px solid var(--border-color);
  }
  
  .nav-link:hover,
  .nav-link.active {
    background: var(--bg-light);
    color: var(--primary-color);
  }
  
  .dropdown-menu {
    display: none !important;
  }
  
  .nav-cta {
    display: none;
  }
  
  .mobile-overlay {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: rgba(0, 0, 0, 0.5);
  z-index: 1000;
  display: none;
  transition: var(--transition);
}

.mobile-overlay.active {
  display: block;
}
  
  .hero-banner {
    padding: 60px 0;
  }
  
  .hero-title {
    font-size: 2rem;
  }
  
  .title-sub {
    font-size: 1.25rem;
  }
  
  .hero-desc {
    font-size: 1rem;
  }
  
  .section {
    padding: 50px 0;
  }
  
  .section-title {
    font-size: 1.75rem;
  }
  
  .products-grid {
    grid-template-columns: 1fr;
  }
  
  .scenarios-grid {
    grid-template-columns: 1fr;
  }
  
  .advantages-grid {
    grid-template-columns: 1fr;
  }
  
  .news-grid {
    grid-template-columns: 1fr;
  }
  
  .product-features {
    grid-template-columns: 1fr;
  }
  
  .desktop-features {
    display: none;
  }
  
  .mobile-features {
    display: grid;
    grid-template-columns: 1fr;
    gap: 16px;
  }
  
  .product-actions-bar {
    flex-direction: column;
  }
  
  .service-tags {
    flex-direction: column;
  }
  
  .product-detail-grid {
    grid-template-columns: 1fr;
  }
  
  .footer-content {
    grid-template-columns: 1fr;
  }
  
  .back-to-top {
    bottom: 20px;
    right: 20px;
    width: 45px;
    height: 45px;
  }
  
  .product-main-title {
    font-size: 1.75rem;
  }
  
  .section-main-title {
    font-size: 1.5rem;
  }
  
  .cta-content h2 {
    font-size: 1.75rem;
  }
  
  .cta-content > p {
    font-size: 1rem;
  }
  
  .contact-intro-text {
    font-size: 1rem;
  }
}

@media (max-width: 480px) {
  html {
    font-size: 14px;
  }
  
  .hero-title {
    font-size: 1.5rem;
  }
  
  .title-sub {
    font-size: 1rem;
  }
  
  .hero-cta {
    flex-direction: column;
    align-items: stretch;
  }
  
  .btn {
    padding: 12px 24px;
    font-size: 0.95rem;
  }
  
  .section-header {
    margin-bottom: 40px;
  }
  
  .section-tag {
    font-size: 0.8rem;
    padding: 4px 12px;
  }
  
  .section-title {
    font-size: 1.5rem;
  }
  
  .product-card,
  .scenario-card,
  .advantage-card {
    padding: 24px;
  }
  
  .product-info {
    padding: 20px;
  }
  
  .product-name {
    font-size: 1.125rem;
  }
  
  .news-column {
    padding: 20px;
  }
  
  .news-column-title {
    font-size: 1.125rem;
  }
  
  .news-list a {
    font-size: 0.875rem;
  }
  
  .product-summary-box,
  .product-highlights,
  .product-contact,
  .product-content {
    padding: 20px;
  }
  
  .price-range {
    font-size: 1.5rem;
  }
  
  .contact-value {
    font-size: 1.25rem;
  }
  
  .scenario-item,
  .faq-item,
  .related-news-item {
    padding: 20px;
  }
  
  .about-image img {
    max-height: 300px;
    object-fit: cover;
  }
  
  .about-experience {
    padding: 16px;
    right: 16px;
    bottom: 16px;
  }
  
  .exp-number {
    font-size: 2rem;
  }
  
  .wechat-qrcode img {
    width: 250px;
    height: 250px;
  }
  
  .sales-domestic,
  .sales-international {
    padding: 24px;
  }
  
  .promise-item {
    padding: 24px;
  }
  
  .promise-number {
    font-size: 2.5rem;
  }
}

@media print {
  .site-header,
  .main-nav,
  .site-footer,
  .back-to-top,
  .breadcrumb,
  .product-actions-bar,
  .service-tags,
  .news-detail-actions {
    display: none !important;
  }
  
  body {
    font-size: 12pt;
    line-height: 1.5;
    color: black;
  }
  
  .section {
    padding: 20px 0;
  }
  
  .product-card,
  .scenario-card,
  .news-column {
    break-inside: avoid;
    box-shadow: none;
    border: 1px solid #ccc;
  }
  
  a {
    color: black;
    text-decoration: none;
  }
  
  a[href]:after {
    content: " (" attr(href) ")";
  }
}

.dropdown-arrow {
  display: inline-block;
  margin-left: 4px;
  font-size: 0.75rem;
  transition: transform 0.3s;
}

.nav-item:hover .dropdown-arrow {
  transform: rotate(180deg);
}

.contact-item {
  display: flex;
  flex-direction: column;
  gap: 4px;
}

.contact-time {
  font-size: 0.875rem;
  color: var(--text-muted);
}

/* 新闻详情页样式 */
.news-detail-section {
  padding: 60px 0;
  background: var(--bg-light);
}

.news-detail {
  background: white;
  border-radius: 8px;
  padding: 40px;
  box-shadow: var(--shadow-md);
}

.news-detail-header {
  margin-bottom: 30px;
  padding-bottom: 20px;
  border-bottom: 2px solid var(--bg-light);
}

.news-detail-header h1 {
  font-size: 2rem;
  color: var(--text-color);
  margin-bottom: 20px;
  line-height: 1.3;
}

.news-meta {
  display: flex;
  gap: 24px;
  flex-wrap: wrap;
}

.news-meta-item {
  display: flex;
  align-items: center;
  gap: 6px;
  font-size: 0.9rem;
  color: var(--text-light);
}

.meta-icon {
  font-size: 1rem;
}

.news-meta a {
  color: var(--primary-color);
  text-decoration: none;
  transition: var(--transition);
}

.news-meta a:hover {
  color: var(--primary-dark);
}

.news-detail-content {
  margin-bottom: 30px;
  font-size: 1rem;
  line-height: 1.8;
  color: var(--text-color);
}

.news-detail-content img {
  max-width: 100%;
  height: auto;
  border-radius: 4px;
  margin: 20px 0;
}

.news-detail-content h2,
.news-detail-content h3,
.news-detail-content h4 {
  margin: 30px 0 15px;
  color: var(--primary-dark);
}

.news-detail-content p {
  margin-bottom: 15px;
}

.news-detail-content ul,
.news-detail-content ol {
  margin-bottom: 20px;
  padding-left: 30px;
}

.news-detail-content li {
  margin-bottom: 8px;
}

.news-detail-actions {
  display: flex;
  gap: 16px;
  margin-bottom: 30px;
  padding: 20px 0;
  border-top: 1px solid var(--border-color);
  border-bottom: 1px solid var(--border-color);
}

.action-btn {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 12px 32px;
  background: var(--accent-color);
  color: white;
  text-decoration: none;
  border-radius: 4px;
  font-weight: 500;
  transition: var(--transition);
  min-width: 160px;
}

.action-btn:hover {
  background: var(--accent-hover);
  transform: translateY(-2px);
  box-shadow: var(--shadow-md);
}

.action-btn.secondary {
  background: var(--primary-color);
}

.action-btn.secondary:hover {
  background: var(--primary-dark);
}

.news-tags {
  margin-bottom: 30px;
  display: flex;
  align-items: center;
  gap: 12px;
  flex-wrap: wrap;
}

.tags-label {
  font-weight: 500;
  color: var(--text-color);
}

.news-tags .tag {
  display: inline-block;
  padding: 6px 16px;
  background: var(--bg-light);
  border: 1px solid var(--border-color);
  border-radius: 20px;
  color: var(--text-light);
  text-decoration: none;
  font-size: 0.875rem;
  transition: var(--transition);
}

.news-tags .tag:hover {
  background: var(--primary-color);
  color: white;
  border-color: var(--primary-color);
}

.news-share {
  margin-bottom: 40px;
  display: flex;
  align-items: center;
  gap: 12px;
}

.share-label {
  font-weight: 500;
  color: var(--text-color);
}

.share-btn {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 40px;
  height: 40px;
  background: var(--bg-light);
  border: 1px solid var(--border-color);
  border-radius: 50%;
  color: var(--text-light);
  text-decoration: none;
  transition: var(--transition);
}

.share-btn:hover {
  background: var(--primary-color);
  color: white;
  border-color: var(--primary-color);
  transform: translateY(-2px);
}

.related-news-section {
  margin-top: 40px;
  padding-top: 30px;
  border-top: 2px solid var(--bg-light);
}

.related-news-section .section-title {
  font-size: 1.5rem;
  color: var(--primary-dark);
  margin-bottom: 24px;
}

.related-news-list {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
  gap: 20px;
}

.related-news-item {
  background: var(--bg-light);
  border-radius: 6px;
  padding: 20px;
  transition: var(--transition);
}

.related-news-item:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-md);
}

.related-news-title {
  font-size: 1.1rem;
  margin-bottom: 12px;
}

.related-news-title a {
  color: var(--text-color);
  text-decoration: none;
  transition: var(--transition);
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

.related-news-title a:hover {
  color: var(--primary-color);
}

.related-news-desc {
  font-size: 0.9rem;
  color: var(--text-light);
  line-height: 1.6;
  margin-bottom: 12px;
  display: -webkit-box;
  -webkit-line-clamp: 3;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

.related-news-meta {
  display: flex;
  gap: 16px;
  font-size: 0.85rem;
  color: var(--text-muted);
}

@media (max-width: 768px) {
  .news-detail-section {
    padding: 30px 0;
  }
  
  .news-detail {
    padding: 20px;
  }
  
  .news-detail-header h1 {
    font-size: 1.5rem;
  }
  
  .news-meta {
    flex-direction: column;
    gap: 8px;
  }
  
  .news-detail-actions {
    flex-direction: column;
  }
  
  .action-btn {
    width: 100%;
  }
  
  .related-news-list {
    grid-template-columns: 1fr;
  }
}

/* 产品详情页样式 */
.product-detail-section {
  padding: 60px 0;
  background: var(--bg-light);
}

.product-detail-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 40px;
  margin-bottom: 60px;
}

.product-image-container {
  display: flex;
  flex-direction: column;
  gap: 20px;
}

.product-image-wrapper {
  background: white;
  border-radius: 8px;
  overflow: hidden;
  box-shadow: var(--shadow-md);
}

.product-image-wrapper img {
  width: 100%;
  height: auto;
  display: block;
  transition: var(--transition);
}

.product-image-wrapper img:hover {
  transform: scale(1.02);
}

.product-features {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 16px;
}

.feature-item {
  background: white;
  border-radius: 6px;
  padding: 20px 12px;
  text-align: center;
  box-shadow: var(--shadow-sm);
  transition: var(--transition);
}

.feature-item:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-md);
}

.feature-icon {
  font-size: 2rem;
  margin-bottom: 8px;
}

.feature-item h3 {
  font-size: 1rem;
  color: var(--text-color);
  margin-bottom: 4px;
}

.feature-item p {
  font-size: 0.875rem;
  color: var(--text-light);
}

.product-info-container {
  background: white;
  border-radius: 8px;
  padding: 40px;
  box-shadow: var(--shadow-md);
}

.product-title {
  font-size: 2rem;
  color: var(--text-color);
  margin-bottom: 20px;
  line-height: 1.3;
}

.product-meta {
  display: flex;
  gap: 24px;
  margin-bottom: 24px;
  padding-bottom: 20px;
  border-bottom: 1px solid var(--border-color);
}

.meta-item {
  display: flex;
  align-items: center;
  gap: 6px;
  font-size: 0.9rem;
  color: var(--text-light);
}

.meta-icon {
  font-size: 1rem;
}

.product-meta a {
  color: var(--primary-color);
  text-decoration: none;
  transition: var(--transition);
}

.product-meta a:hover {
  color: var(--primary-dark);
}

.product-description {
  margin-bottom: 24px;
  font-size: 1rem;
  line-height: 1.8;
  color: var(--text-color);
}

.product-keywords {
  margin-top: 12px;
  padding-top: 12px;
  border-top: 1px solid var(--border-color);
  font-size: 0.9rem;
  color: var(--text-light);
}

.contact-info {
  margin-bottom: 24px;
}

.contact-item {
  display: flex;
  align-items: center;
  gap: 16px;
  padding: 20px;
  background: var(--bg-light);
  border-radius: 6px;
}

.contact-icon {
  font-size: 2rem;
}

.contact-content {
  display: flex;
  flex-direction: column;
  gap: 4px;
}

.contact-label {
  font-size: 0.875rem;
  color: var(--text-muted);
}

.contact-value {
  font-size: 1.25rem;
  font-weight: 600;
  color: var(--accent-color);
  text-decoration: none;
  transition: var(--transition);
}

.contact-value:hover {
  color: var(--accent-hover);
}

.product-cta-buttons {
  display: flex;
  gap: 16px;
}

.btn-large {
  padding: 16px 40px;
  font-size: 1.1rem;
}

.product-content {
  background: white;
  border-radius: 8px;
  padding: 40px;
  box-shadow: var(--shadow-md);
  margin-bottom: 60px;
}

.product-detail-content {
  font-size: 1rem;
  line-height: 1.8;
  color: var(--text-color);
}

.product-detail-content img {
  max-width: 100%;
  height: auto;
  border-radius: 4px;
  margin: 20px 0;
}

.product-detail-content h2,
.product-detail-content h3,
.product-detail-content h4 {
  margin: 30px 0 15px;
  color: var(--primary-dark);
}

.product-detail-content p {
  margin-bottom: 15px;
}

.product-detail-content ul,
.product-detail-content ol {
  margin-bottom: 20px;
  padding-left: 30px;
}

.product-detail-content li {
  margin-bottom: 8px;
}

.product-application {
  background: white;
  border-radius: 8px;
  padding: 40px;
  box-shadow: var(--shadow-md);
  margin-bottom: 60px;
}

.product-application .section-title {
  font-size: 1.75rem;
  color: var(--primary-dark);
  margin-bottom: 30px;
  text-align: center;
}

.application-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 30px;
}

.application-category h3 {
  font-size: 1.25rem;
  color: var(--primary-color);
  margin-bottom: 20px;
  padding-bottom: 12px;
  border-bottom: 2px solid var(--border-color);
}

.application-items {
  display: flex;
  flex-direction: column;
  gap: 20px;
}

.application-item {
  padding: 20px;
  background: var(--bg-light);
  border-radius: 6px;
  transition: var(--transition);
}

.application-item:hover {
  transform: translateX(4px);
  box-shadow: var(--shadow-sm);
}

.application-item h4 {
  font-size: 1.1rem;
  color: var(--text-color);
  margin-bottom: 8px;
}

.application-item p {
  font-size: 0.9rem;
  color: var(--text-light);
  line-height: 1.6;
}

.section-related-products {
  background: white;
  border-radius: 8px;
  padding: 40px;
  box-shadow: var(--shadow-md);
}

.section-related-products .section-header {
  text-align: center;
  margin-bottom: 30px;
}

.section-related-products .section-title {
  font-size: 1.75rem;
  color: var(--primary-dark);
}

@media (max-width: 768px) {
  .product-detail-section {
    padding: 30px 0;
  }
  
  .product-detail-grid {
    grid-template-columns: 1fr;
    gap: 30px;
  }
  
  .product-features {
    grid-template-columns: 1fr;
  }
  
  .product-info-container {
    padding: 20px;
  }
  
  .product-title {
    font-size: 1.5rem;
  }
  
  .product-meta {
    flex-direction: column;
    gap: 8px;
  }
  
  .product-cta-buttons {
    flex-direction: column;
  }
  
  .product-content {
    padding: 20px;
  }
  
  .product-application {
    padding: 20px;
  }
  
  .application-grid {
    grid-template-columns: 1fr;
  }
  
  .section-related-products {
    padding: 20px;
  }
}

/* 服务页面样式 */
.section-service-hero {
  padding: 80px 0 60px;
  background: var(--bg-light);
  text-align: center;
}

.section-service-list {
  padding: 80px 0;
}

.section-service-process {
  padding: 80px 0;
  background: var(--bg-light);
}

.section-service-advantages {
  padding: 80px 0;
  background: var(--primary-color);
  color: white;
}

.section-service-advantages .section-title {
  color: white;
}

.section-service-advantages .section-desc {
  color: rgba(255, 255, 255, 0.8);
}

.section-service-cta {
  padding: 80px 0;
  background: var(--bg-dark);
  color: white;
  text-align: center;
}

.service-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 24px;
}

.service-card {
  background: white;
  padding: 32px;
  border-radius: 12px;
  text-align: center;
  transition: var(--transition);
  border: 1px solid var(--border-color);
}

.service-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-md);
  border-color: var(--primary-color);
}

.service-card .service-icon {
  width: 64px;
  height: 64px;
  margin: 0 auto 20px;
  color: var(--primary-color);
}

.service-card .service-icon svg {
  width: 100%;
  height: 100%;
}

.service-card h2 {
  font-size: 1.25rem;
  font-weight: 600;
  margin-bottom: 12px;
  color: var(--primary-color);
}

.service-card > p {
  font-size: 0.95rem;
  color: var(--text-light);
  line-height: 1.6;
  margin-bottom: 16px;
}

.service-features {
  list-style: none;
  padding: 0;
  margin: 0;
  text-align: left;
}

.service-features li {
  padding: 6px 0;
  font-size: 0.875rem;
  color: var(--text-muted);
  position: relative;
  padding-left: 16px;
}

.service-features li:before {
  content: "•";
  position: absolute;
  left: 0;
  color: var(--accent-color);
}

.process-timeline {
  position: relative;
  max-width: 800px;
  margin: 0 auto;
}

.process-timeline:before {
  content: '';
  position: absolute;
  top: 0;
  left: 50%;
  transform: translateX(-50%);
  width: 2px;
  height: 100%;
  background: var(--accent-color);
}

.process-item {
  display: flex;
  margin-bottom: 40px;
  position: relative;
}

.process-item:nth-child(even) {
  flex-direction: row-reverse;
}

.process-number {
  width: 60px;
  height: 60px;
  border-radius: 50%;
  background: var(--accent-color);
  color: white;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.25rem;
  font-weight: bold;
  position: relative;
  z-index: 1;
  flex-shrink: 0;
}

.process-content {
  flex: 1;
  background: white;
  padding: 24px;
  border-radius: 8px;
  box-shadow: var(--shadow-sm);
  margin: 0 30px;
  border: 1px solid var(--border-color);
}

.process-content h3 {
  font-size: 1.125rem;
  font-weight: 600;
  color: var(--primary-color);
  margin-bottom: 8px;
}

.process-content p {
  font-size: 0.95rem;
  color: var(--text-light);
  margin: 0;
}

.advantages-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: 40px;
  text-align: center;
}

.advantage-item {
  padding: 32px;
  background: rgba(255, 255, 255, 0.1);
  border-radius: 12px;
  transition: var(--transition);
}

.advantage-item:hover {
  background: rgba(255, 255, 255, 0.15);
  transform: translateY(-4px);
}

.advantage-number {
  font-size: 3rem;
  font-weight: bold;
  color: var(--accent-color);
  margin-bottom: 8px;
}

.advantage-text {
  font-size: 1.125rem;
  color: rgba(255, 255, 255, 0.9);
  font-weight: 500;
}

.cta-content h2 {
  font-size: 2rem;
  font-weight: 700;
  color: white;
  margin-bottom: 16px;
}

.cta-content > p {
  font-size: 1.125rem;
  color: rgba(255, 255, 255, 0.8);
  margin-bottom: 32px;
}

.cta-buttons {
  display: flex;
  justify-content: center;
  gap: 16px;
  flex-wrap: wrap;
}

.cta-buttons .btn {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 16px 32px;
  font-size: 1.125rem;
  font-weight: 600;
}

.cta-buttons .btn svg {
  width: 20px;
  height: 20px;
}

.cta-buttons .btn-primary {
  background: var(--accent-color);
  border: none;
  color: white;
  border-radius: 6px;
  transition: var(--transition);
}

.cta-buttons .btn-primary:hover {
  background: var(--accent-hover);
  transform: translateY(-2px);
  box-shadow: var(--shadow-md);
}

.cta-buttons .btn-outline {
  background: transparent;
  border: 2px solid white;
  color: white;
  border-radius: 6px;
  transition: var(--transition);
}

.cta-buttons .btn-outline:hover {
  background: white;
  color: var(--bg-dark);
  transform: translateY(-2px);
}

@media (max-width: 768px) {
  .section-service-hero,
  .section-service-list,
  .section-service-process,
  .section-service-advantages,
  .section-service-cta {
    padding: 60px 0;
  }
  
  .service-grid {
    grid-template-columns: 1fr;
    gap: 20px;
  }
  
  .service-card {
    padding: 24px;
  }
  
  .service-card .service-icon {
    width: 56px;
    height: 56px;
  }
  
  .service-card h2 {
    font-size: 1.125rem;
  }
  
  .service-card > p {
    font-size: 0.875rem;
  }
  
  .service-features li {
    font-size: 0.8125rem;
  }
  
  .process-timeline {
    max-width: 100%;
  }
  
  .process-timeline:before {
    left: 30px;
  }
  
  .process-item {
    flex-direction: row !important;
    margin-bottom: 30px;
  }
  
  .process-number {
    width: 50px;
    height: 50px;
    font-size: 1rem;
  }
  
  .process-content {
    margin-left: 20px;
    margin-right: 0;
    padding: 20px;
  }
  
  .process-content h3 {
    font-size: 1rem;
  }
  
  .process-content p {
    font-size: 0.875rem;
  }
  
  .advantages-grid {
    grid-template-columns: repeat(2, 1fr);
    gap: 20px;
  }
  
  .advantage-item {
    padding: 24px;
  }
  
  .advantage-number {
    font-size: 2rem;
  }
  
  .advantage-text {
    font-size: 1rem;
  }
  
  .cta-content h2 {
    font-size: 1.5rem;
  }
  
  .cta-content > p {
    font-size: 1rem;
  }
  
  .cta-buttons {
    flex-direction: column;
    align-items: center;
  }
  
  .cta-buttons .btn {
    padding: 12px 24px;
    font-size: 1rem;
  }
}

/* FAQ页面样式 */
.faq-container {
  max-width: 900px;
  margin: 0 auto;
}

.faq-category {
  margin-bottom: 40px;
}

.faq-category-title {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 1.25rem;
  font-weight: 600;
  color: var(--primary-color);
  margin-bottom: 24px;
  padding-bottom: 12px;
  border-bottom: 2px solid var(--border-color);
}

.faq-category-title svg {
  width: 28px;
  height: 28px;
  color: var(--accent-color);
}

.faq-item {
  background: white;
  border-radius: 8px;
  margin-bottom: 16px;
  overflow: hidden;
  border: 1px solid var(--border-color);
}

.faq-question {
  display: flex;
  align-items: flex-start;
  gap: 12px;
  padding: 20px;
  background: var(--bg-light);
}

.faq-icon {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 32px;
  height: 32px;
  border-radius: 50%;
  font-weight: bold;
  font-size: 0.875rem;
  flex-shrink: 0;
}

.faq-question .faq-icon {
  background: var(--primary-color);
  color: white;
}

.faq-question h3 {
  font-size: 1.1rem;
  font-weight: 600;
  color: var(--text-color);
  margin: 0;
  line-height: 1.5;
}

.faq-answer {
  display: flex;
  align-items: flex-start;
  gap: 12px;
  padding: 20px;
}

.faq-answer .faq-icon {
  background: var(--accent-color);
  color: white;
}

.faq-answer-content {
  flex: 1;
}

.faq-answer-content p {
  margin-bottom: 12px;
  color: var(--text-light);
  line-height: 1.6;
}

.faq-answer-content ul {
  margin: 12px 0;
  padding-left: 20px;
}

.faq-answer-content li {
  margin-bottom: 8px;
  color: var(--text-light);
  line-height: 1.6;
}

.section-news-list {
  padding: 60px 0;
  background: var(--bg-light);
}

.news-list-container {
  max-width: 1000px;
  margin: 0 auto;
}

.news-item {
  background: white;
  border-radius: 12px;
  padding: 30px;
  margin-bottom: 30px;
  box-shadow: var(--shadow-sm);
  border: 1px solid var(--border-color);
  transition: var(--transition);
}

.news-item:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-md);
  border-color: var(--primary-color);
}

.news-item-header {
  margin-bottom: 15px;
}

.news-item-title {
  font-size: 1.5rem;
  font-weight: 600;
  color: var(--primary-color);
  margin-bottom: 12px;
  line-height: 1.4;
}

.news-item-title a {
  color: var(--primary-color);
  text-decoration: none;
  transition: var(--transition);
}

.news-item-title a:hover {
  color: var(--accent-color);
}

.news-item-meta {
  display: flex;
  gap: 20px;
  font-size: 0.9rem;
  color: var(--text-muted);
}

.news-item-desc {
  font-size: 1rem;
  line-height: 1.6;
  color: var(--text-color);
  margin-bottom: 20px;
}

.news-item-action {
  display: flex;
  justify-content: flex-end;
}

.news-item-link {
  color: var(--primary-color);
  text-decoration: none;
  font-weight: 500;
  transition: var(--transition);
  display: inline-flex;
  align-items: center;
  gap: 5px;
}

.news-item-link:hover {
  color: var(--accent-color);
  transform: translateX(5px);
}

.news-hooks-container {
  max-width: 1000px;
  margin: 0 auto;
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 15px;
  padding: 20px 0;
}

.news-hook-item {
  background: white;
  border-radius: 8px;
  padding: 15px 20px;
  border: 1px solid var(--border-color);
  transition: var(--transition);
}

.news-hook-item:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow-sm);
  border-color: var(--primary-color);
}

.news-hook-link {
  display: flex;
  align-items: center;
  gap: 12px;
  text-decoration: none;
  color: var(--text-color);
  transition: var(--transition);
}

.news-hook-link:hover {
  color: var(--primary-color);
}

.news-hook-icon {
  font-size: 1.2rem;
  color: var(--accent-color);
  flex-shrink: 0;
}

.news-hook-title {
  font-size: 0.95rem;
  font-weight: 500;
  line-height: 1.4;
  flex: 1;
}

/* 响应式设计 */
@media (max-width: 768px) {
  .news-hooks-container {
    grid-template-columns: 1fr;
    gap: 12px;
  }
  
  .news-hook-item {
    padding: 12px 16px;
  }
  
  .news-hook-title {
    font-size: 0.9rem;
  }
}
.region-main {
  min-height: 100vh;
}

.section-region-hero {
  background: linear-gradient(135deg, var(--primary-color) 0%, var(--primary-dark) 100%);
  color: #fff;
  padding: 80px 0 60px;
  text-align: center;
  text-shadow: 0 1px 2px rgba(0,0,0,0.3);
}

.section-region-hero .section-header {
  margin-bottom: 30px;
}

.section-region-hero .section-tag {
  color: var(--accent-color);
  font-size: 1rem;
  letter-spacing: 4px;
  font-weight: 700;
  display: block;
  margin-bottom: 15px;
  text-shadow: 0 1px 3px rgba(0,0,0,0.4);
}

.section-region-hero .section-title {
  font-size: 2.8rem;
  margin-bottom: 15px;
  font-weight: 800;
  text-shadow: 0 2px 4px rgba(0,0,0,0.4);
}

.section-region-hero .section-desc {
  font-size: 1.2rem;
  opacity: 1;
  font-weight: 500;
  text-shadow: 0 1px 3px rgba(0,0,0,0.3);
}

.section-region-domestic {
  padding: 80px 0;
  background: var(--bg-light);
}

.region-header {
  text-align: center;
  margin-bottom: 50px;
}

.region-header h2 {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  font-size: 2rem;
  color: var(--primary-color);
  margin-bottom: 15px;
  font-weight: 700;
}

.region-header h2 svg {
  width: 36px;
  height: 36px;
  color: var(--accent-color);
}

.region-header p {
  font-size: 1.1rem;
  color: var(--text-light);
}

.region-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
  gap: 30px;
}

.region-group {
  background: #fff;
  padding: 30px;
  border-radius: 12px;
  box-shadow: var(--shadow-sm);
  border: 1px solid var(--border-color);
}

.region-group h3 {
  font-size: 1.3rem;
  color: var(--primary-color);
  margin-bottom: 20px;
  padding-bottom: 12px;
  border-bottom: 2px solid var(--accent-color);
  font-weight: 600;
}

.region-list {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(140px, 1fr));
  gap: 15px;
}

.region-item {
  background: var(--bg-light);
  padding: 15px;
  border-radius: 8px;
  border: 1px solid var(--border-color);
  transition: all 0.3s ease;
}

.region-item:hover {
  background: var(--primary-color);
  border-color: var(--primary-color);
}

.region-item:hover h4,
.region-item:hover p {
  color: #fff;
}

.region-item h4 {
  font-size: 1rem;
  color: var(--primary-color);
  margin-bottom: 5px;
  font-weight: 600;
  transition: color 0.3s ease;
}

.region-item p {
  font-size: 0.85rem;
  color: var(--text-light);
  line-height: 1.5;
  transition: color 0.3s ease;
}

.section-region-international {
  padding: 80px 0;
  background: #fff;
}

.international-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(400px, 1fr));
  gap: 30px;
  max-width: 1000px;
  margin: 0 auto;
}

.international-group {
  background: var(--bg-light);
  padding: 30px;
  border-radius: 12px;
  border: 1px solid var(--border-color);
}

.international-group h3 {
  font-size: 1.3rem;
  color: var(--primary-color);
  margin-bottom: 20px;
  padding-bottom: 12px;
  border-bottom: 2px solid var(--accent-color);
  font-weight: 600;
}

.international-list {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
  gap: 15px;
}

.international-item {
  background: #fff;
  padding: 15px;
  border-radius: 8px;
  border: 1px solid var(--border-color);
  transition: all 0.3s ease;
}

.international-item:hover {
  background: var(--primary-color);
  border-color: var(--primary-color);
}

.international-item:hover h4,
.international-item:hover p {
  color: #fff;
}

.international-item h4 {
  font-size: 1rem;
  color: var(--primary-color);
  margin-bottom: 5px;
  font-weight: 600;
  transition: color 0.3s ease;
}

.international-item p {
  font-size: 0.85rem;
  color: var(--text-light);
  line-height: 1.5;
  transition: color 0.3s ease;
}

.section-region-service {
  padding: 80px 0;
  background: var(--bg-light);
}

.service-features-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: 30px;
}

.service-feature {
  background: #fff;
  padding: 35px 30px;
  border-radius: 12px;
  box-shadow: var(--shadow-sm);
  text-align: center;
  border: 1px solid var(--border-color);
  transition: all 0.3s ease;
}

.service-feature:hover {
  transform: translateY(-5px);
  box-shadow: var(--shadow-md);
}

.service-feature .feature-icon {
  width: 70px;
  height: 70px;
  margin: 0 auto 20px;
  background: linear-gradient(135deg, var(--accent-color) 0%, var(--accent-hover) 100%);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  color: #fff;
}

.service-feature .feature-icon svg {
  width: 35px;
  height: 35px;
}

.service-feature h3 {
  font-size: 1.2rem;
  color: var(--primary-color);
  margin-bottom: 12px;
  font-weight: 600;
}

.service-feature p {
  font-size: 0.95rem;
  color: var(--text-light);
  line-height: 1.6;
}

.section-region-cta {
  padding: 100px 0;
  background: linear-gradient(135deg, var(--primary-color) 0%, var(--primary-dark) 100%);
  color: #fff;
  text-align: center;
}

@media (max-width: 768px) {
  .region-header h2 {
    font-size: 1.5rem;
  }
  
  .region-grid {
    grid-template-columns: 1fr;
  }
  
  .region-list {
    grid-template-columns: 1fr;
  }
  
  .international-grid {
    grid-template-columns: 1fr;
  }
  
  .international-list {
    grid-template-columns: 1fr;
  }
  
  .service-features-grid {
    grid-template-columns: 1fr;
  }
  
  .service-feature {
    padding: 24px;
  }
  
  .section-region-hero .section-tag {
    font-size: 0.85rem;
    letter-spacing: 3px;
  }
  
  .section-region-hero .section-title {
    font-size: 2.2rem;
  }
  
  .section-region-hero .section-desc {
    font-size: 1rem;
  }
}